Synthesis and Characterization of Temperature-Sensitive Intelligent Conductive Hydrogel
In order to adapt to the development needs of the frontier field of discipline and better cultivate students' spirit of inquiry and innovation ability, it is necessary to design innovative experiments with multi-disciplinary integration to im-prove students' overall quality of scientific research. In this experiment, a smart temperature-sensitive conductive hydrogel was prepared by N-isopropylacrylamide (NIPAm) and AMPSNa through free radical polymerization. The hydrogel exhibits obvious volume-phase transition in a certain temperature range, which leads to regular changes in the electrical properties with temperature. This experiment involves the basic operation of polymer chemical reaction, including temperature-sensi-tive volume phase transition test, assembly of button battery device and electrical property test, etc. At the same time, it al-so explores the relationship between polymer micro chain structure and electrical property change. Through simple water-phase free radical polymerization, this experiment deepens students' understanding of free radical polymerization reaction, exercises students' comprehensive practical ability in the preparation, testing and result analysis of intelligent polymer, and cultivates their innovative consciousness, which is suitable for comprehensive experimental teaching of students major-ing in materials.
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